Uchi no Joushi ga Nise Kangan de, Koukyuu de Himitsu no Dekiai Seikatsu Shichattemasu

Rinrei (Lin Ling), a seamstress in the imperial palace, is asked by the elderly emperor to perform a night of bedtime entertainment. However, just as she is about to, the emperor dies suddenly. The rule is that if she is the mistress even for one night, she will be buried with the emperor, but the beautiful eunuch Youso (Yao Sa) examines Rinrei's body and proves that she is a virgin. He then confronts Rinrei with his feelings for her...?